Rotary Wing
Sampling Interval
Air
Component
Hours
Days
Designation
Model
0
25
TH-67
Main Xmsn
0
25
90/Tail Gbx
0
13
250-C-30
0
40
Hyd Sys
Physical Properties Only
250
UH-1
Engine (T53-l-703/13B) With ODDS
25
Engine (T53-l-703/13B) Without ODDS
Physical Properties Only
250
Main Transmission With ODDS
50
Main Transmission Without ODDS
50
Intermediate Gearbox
50
Tail Rotor Gearbox
Physical Properties Only
500
UH-60A
Main Transmission (-073, -074, -076 only) 3 micron filter
50
Main Transmission (all others)
35
Intermediate Gearbox
35
Tail Gearbox
100
APU (T62T-40-1)
Physical Properties Only
500
UH-60L
Main Transmission (all)
35
Intermediate Gearbox
35
Tail Gearbox
100
APU
Physical Properties Only
500
UH-60Q
Main Transmission (-073, -074, -076 only) 3 micron filter
50
Main Transmission (all others)
35
Intermediate Gearbox
35
Tail Gearbox
100
APU
Fixed Wing
Sampling Intervals
Air
Component
Designation
Model
Hours
Days
365
100
C-12
PT6A-27
365
100
PT6A-34
365
100
PT6A-38
365
100
PT6A-41
365
100
PT6A-42
365
100
C-12C
PT6A-41
365
100
C-12D
PT6A-41
365
100
C-12J
PT6A-65B
365
100
O-5A
PT6A-50
365
100
RC-12D
PT6A-41
365
100
RC-12G
PT6A-41
365
100
RC-12K
PT6A-67
365
100
RF-8G
J57-P-420
365
100
U-21F
PT6A-28
